EP 1652746 A1 20060503 - SELF-STEERING FLATCAR AND RAILROAD VEHICLE USING HAVING THIS SELF-STEERING FLATCAR APPLIED THERETO
Title (en)
SELF-STEERING FLATCAR AND RAILROAD VEHICLE USING HAVING THIS SELF-STEERING FLATCAR APPLIED THERETO
Title (de)
SELBSTLENKUNGSFLACHWAGEN UND SCHIENENFAHRZEUG, AN DEM DIESER SELBSTLENKUNGSFLACHWAGEN ANGEBRACHT IST
Title (fr)
ESSIEU A AUTOGUIDAGE ET WAGON L'UTILISANT
Publication
Application
Priority
- JP 2004010018 W 20040714
- JP 2003197912 A 20030716
Abstract (en)
There is provided a self-steering truck in which travel stability and turning performance are improved, and a railroad vehicle to which the self-steering truck is applied. An active steering damper 10 is extended or shrunk as a whole by driving a DC motor 13 so as to rotate a ball screw 15 and allow a nut 16 into which the ball screw is engaged to spiral back and forth, and thereby wheel axles 2 are steered through a steering link 6. This steering is performed by the active function of the active steering damper 10. The active function can solve the response delay of the self-steering which occurs while moving from a straight line to a steady curve through a transition curve. The active steering damper 10 also has a passive function. The passive function serves as a rigid body with respect to vibration at a frequency of hunting which occurs at the time of moving along a straight line, and exerts a buffering function as a non-rigid body with respect to vibration at another frequency. With this, high-speed travel in a straight line and moving performance along a steady curve can be improved.
IPC 1-7
IPC 8 full level
B61D 1/06 (2006.01); B61F 3/16 (2006.01); B61F 5/38 (2006.01)
CPC (source: EP)
B61D 1/06 (2013.01); B61F 3/16 (2013.01); B61F 5/38 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1652746 A1 20060503; EP 1652746 A4 20081126; JP 4562655 B2 20101013; JP WO2005007480 A1 20061124; WO 2005007480 A1 20050127
DOCDB simple family (application)
EP 04747484 A 20040714; JP 2004010018 W 20040714; JP 2005511830 A 20040714